1J-Core SPI master 2 3Required properties: 4 5- compatible: Must be "jcore,spi2". 6 7- reg: Memory region for registers. 8 9- #address-cells: Must be 1. 10 11- #size-cells: Must be 0. 12 13Optional properties: 14 15- clocks: If a phandle named "ref_clk" is present, SPI clock speed 16 programming is relative to the frequency of the indicated clock. 17 Necessary only if the input clock rate is something other than a 18 fixed 50 MHz. 19 20- clock-names: Clock names, one for each phandle in clocks. 21 22See spi-bus.txt for additional properties not specific to this device. 23 24Example: 25 26spi@40 { 27 compatible = "jcore,spi2"; 28 #address-cells = <1>; 29 #size-cells = <0>; 30 reg = <0x40 0x8>; 31 spi-max-frequency = <25000000>; 32 clocks = <&bus_clk>; 33 clock-names = "ref_clk"; 34} 35